baber/WOPTO huggingface dataset:
Patent GB-889811-A (GB)
Title: Pigmented fibre-forming polyesters and process for their manufacture
IPC: C08G85/00
Filed: 1958-12-29
Abstract: In the pigmenting of fibre-forming polyesters of dihydric alcohols and aromatic or aliphatic dicarboxylic acids, there is used a pigment dispersion obtained by dispersing the pigment in part of the dihydric alcohol together with a dispersion agent obtained by condensing (a) an aromatic hydroxy compound and an o -sulphomethyl compound of formula R-CH2-SO3X where R is an aromatic residue and X is an alkali metal or (b) a naphthalene sulphonic acid and formaldehyde, followed by removing coarse particles (e.g. greater than 3m ) from the dispersion by centrifuging or sedimentation.  The pigment dispersion is then introduced into (1) a mixture of the dihydric alcohol and the dicarboxylic acid (or ester thereof) and the mixture polycondensed or (2) a mixture obtained by heating polyethylene terephthalate waste with ethylene glycol (the mixture being filtered either before or after addition of the pigment dispersion) and the mixture polycondensed.  Examples describe the preparation of polyethylene terephthalate pigmented with carbon black.  Other polyesters referred to are polyethylene terephthalate in which all or part of the ethylene glycol is replaced by 1:3-propane- or 1:4-butanediol or in which part of the terephthalic acid is replaced by isophthalic or sebacic acid. Specifications 250,398 and 610,137 are referred to.
Patent GB-1477225-A (GB)
Title: Hand steaming device with automatic power interrupting means
IPC: D06F87/00
Filed: 1974-09-30
Abstract: 1477225 Clothes conditioners OSROW PRODUCTS CO Inc 30 Sept 1974 [18 June 1974] 42392/74 Heading D1A In a hand-held clothes conditioner with heating electrodes in a reservoir 16, removal of a filler cap 24 causes a switch 32 to disconnect a power supply from the electrodes. The switch 32 is operated by a plunger 48 (Fig. 4) actuated by an integral cam surface 74 of the filler cap 24 (Fig. 5). The cap is only removable when it has been rotated anticlockwise (Fig. 4) by a lever 58 until the cam surface 74 and cam extension 68 are no longer below an overhanging inner edge (53) of the handle 52.
Patent GB-1021268-A (GB)
Title: Temperature responsive electrical control device
IPC: H01H37/56
Filed: 1963-10-28
Abstract: 1,021,268. Thermal switches; magnetic switches. ROBERTSHAW CONTROLS CO. Oct. 28, 1963 [Nov. 5, 1962] No. 42476/63. Addition to 999,653. Heading H2B. [Also in Division H1] The sleeve member of the parent Specification is replaced by a rotatable post 44<SP>1</SP>. A heat anticipating variable resistor 316 (Figs. 2-5, not shown) is provided and has two coils 316a, 316b, engaged by wiper contacts 317a, 317b of a wiper contact blade 317 mounted on post 441. An anti-torque washer 524 prevents undesired rotation of contact blade 317 relative to post 44<SP>1</SP>.
Patent GB-1219063-A (GB)
Title: Process for preparing fluoroisobutylenes
IPC: C07C17/00
Filed: 1969-08-27
Abstract: 1,219,063. Fluoroisobutylenes. ALLIED CHEMICAL CORP. 27 Aug., 1969 [10 Sept., 1968], No. 42613/69. Heading C2C. Fluoroisobutylenes of formula in which each X is hydrogen, chlorine or fluorine, are prepared by reaction of a compound of formula CF 2 X-C(OH)(CF 2 X)-CH 3  with phosphorus pentachloride at 90‹ to 200‹ C. under superatmospheric pressure.
Patent GB-1515459-A (GB)
Title: Method of and apparatus for making open mesh sheets
IPC: D04H3/045
Filed: 1976-10-13
Abstract: 1515459 Non-woven net V FRIEDRICH 13 Oct 1976 [13 Oct 1975] 42616/76 Heading DIR Threads 4 are laid on the peripheral surface 2 of a rotating drum 1 by a guide 3 which reciprocates parallel to the drum axle 11 to form a non-woven net. Preferably the threads are retained by pins 5 disposed in a circumferential row on either side of the peripheral surface. A further set of threads (26, Fig. 2, not shown) may be laid extending circumferentially of the drum. The threads are bonded at their cross-over points by pressing rolls 22, 23. The rolls and the drum may be heated. The threads may be coated with adhesive before being laid, thermoplastic films may be laid on either side of the threads or between the crossing and circumferential thread layers or bicomponent nylon 6/66 may be autogenously bonded. A cooling plate 21 may be provided before knives 7.
Patent GB-1260052-A (GB)
Title: Improved freewheel clutch
IPC: F16D41/07
Filed: 1969-08-27
Abstract: 1,260,052. One-way clutch. SKF KUGELLAGERFABRIKEN G.m.b.H. 27 Aug., 1969 [31 Aug., 1968], No. 42621/69. Heading F2C. In a jamming roller or ball one-way clutch, the rollers 3 are positioned between inner and outer cylindrical races (1), (2), Fig. 1 (not shown), and the jamming of the rollers against the inner or, as shown, outer race is effected by a wedge surface 7 on resilient clips 6 in each cage pocket. Each clip is returned in the pocket by fingers 8 engaging the cage cross-members 9. The wedging surfaces may extend the full width of the rollers, and the clips may be retained by single fingers 8, Figs. 3 and 4 (not shown). Again, the wedge surface 7 may be narrow and received in a circumferential recess (10) in the outer, or inner, race, Figs. 5-7 (not shown), to further cushion clutch engagement. The rollers may also have a circumferential recess and/or be tapered.
Patent GB-1218962-A (GB)
Title: Apparatus for producing fastener strips
Inventor: REICH KURT
IPC: B65B15/04
Filed: 1968-09-09
Abstract: 1,218,962. Carding nails. K. REICH. 9 Sept., 1968 [9 Sept., 1967], No. 42724/68. Heading B8C. An apparatus for continuously producing strips of fasteners, e.g. nails, comprises a nail assembling and agitating device (1), Fig. 1 (not shown), which aligns the nails 5 into a row and feeds them between upper rails 15, 17 of a first rail track (7) whereupon they fall to a lower end 9 of the track (7) where they are heated by an electric inductive device (11), the heat output of which is controlled by a thermistor. A magnet (69), Fig. 3 (not shown), attracts the nails 5, one by one, between a second rail track 23 where a reciprocating bar (71), Fig. 7 (not shown), pushes them between first toothed segments of horizontally spring biased ratchet bars 35, 37 and fixed ratchet bars 47, 49 so that every time toothed horizontally spring biased driving jaws 51, 53 reciprocate in the direction of nail travel under the action of a sliding member 59, the ratchet bars 35, 37 move off the bars 47, 49 to allow stepwise conveyance of the nails 5. Paper strips 81, 83 (or one only) which are first coated with a thermoplastic adhesive and then a foamed filling agent, are (or is) fed between horizontally reciprocating pressure and cooling plates (121), (123), Fig. 13 (not shown), where they are pressed against the shanks of the hot nails 5 so forming a strip of nails with the foamed filling agent at least partly filling gaps between adjacent nails, the cooling operation so hardening the adhesive and filling agent. The strip is then perforated between adjacent nails by a vertical row of needles (127), cooled again by an air blower and finally fed to a cutting device where the strip is cut into predetermined lengths, the cutter being activated after a counter (183) has counted a required number of conveying movements. A photoelectric device (10) in the first rail track (7) stops the feed device (1) should the nails build up in the track (7). In a modification, Figs. 15-18 (not shown), the teeth of the fixed ratchet bars are replaced by spring biased balls disposed within the mouth of horizontally extending bores while the other ratchet bars are fixed to driving jaws which reciprocate in a circular manner. In a second modification, Fig. 19 (not shown), the driving jaws are replaced by the links of one, or two chains disposed above each other, to carry the nails stepwise against at least one guide rail. The reciproating bar (71) is replaced by an indexable toothed disc. In a final modification, Figs. 20, 21 (not shown), the driving jaws are pivoted towards and away from the nails, and reciprocate in the direction of nail travel whilst the ratchet bars are not spring biased but also pivoted to or from the fixed ratchet bars.
Patent GB-1183588-A (GB)
Title: A Method of Manufacturing Printing Cylinders
Inventor: BREWSTER ARTHUR EDWARD
IPC: G03G19/00
Filed: 1967-09-21
Abstract: 1,183,588. Printing apparatus. STANDARD TELEPHONES & CABLES Ltd, 21 Sept., 1967, No. 42933/67. Heading B6C. A method of manufacturing a printing cylinder comprises providing a cylindrical roller having a surface coating of either a magnetic or a dielectric material, forming a raised pattern of powder particles on the roller surface which is in the form of alpha-numeric characters or facsimile, said particles having been treated with a thermal fixing agent, and heating the raised pattern of powder particles causing them to fuse to the roller surface. The resulting imaged cylinder 1, Fig. 3, may be used in a printing apparatus for printing a web 20 after the application of ink from a dispenser unit 21. The coated cylinder is imaged by a head 3 and passes through a powder particle dispenser 4 prior to subjection to heating means 5. After printing the requisite number of copies the image may be removed from the cylinder surface by a solvent eraser unit 22.
Patent GB-1448210-A (GB)
Title: Telephone exchange apparatus
IPC: H04Q3/62
Filed: 1972-09-19
Abstract: 1448210 Exchange systems GENERAL ELECTRIC CO Ltd 19 Dec 1973 [19 Sept 1972]  43423/72 Heading H4K In a PMBX in which extensions are multiplied on to two cross-bar switches one of which gives access to local links and the other to exchange lines, a control circuit is provided for holding a select magnet of the first switch after a path has been connected therethrough from a calling extension to an operator so that subsequently if a connection is to be established to an exchange line the select magnet that must be energized in the second switch is immediately identified from a consideration of the corresponding held magnet in the first switch. In Fig. 1 a calling line circuit energizes a lamp on an operator's board 2. The operator responds by actuating a corresponding non-locking key so that the line circuit is connected over a three wire path through the switch A to a free local link circuit 4. The operator learns the identity of the wanted party and then either actuates his extension key or an exchange line key whereby a path from the wanted local party to the other side of the link via switch A is set up or a path from the calling line to a free exchange line via switch B is selected making use of the fact that the select magnet to be used in switch B is known from the held select magnet in switch A. Both select magnets are released once the bridge magnet pertaining to the selected exchange line has operated. Considering now Fig. 2, the operator actuates key K1, say, corresponding to the caller thereby, via K1A, energizing the corresponding select magnet 1SA and, via K1B, and logic 10, bringing up relay OR. Consequently SO comes up and holds the energized magnet via 1sa2, so2. A relay IB0 follows OR and 1SA so as to start a link selector (not shown) which causes the energization of a bridge magnet in switch A for connecting the caller through to a selected free link. The operator accesses this link whereupon the logic releases OR and consequently 1BO. After ascertaining the caller's requirements, the operator on a local call actuates the wanted party's key, e.g. K2 via K2B, logic 10 energizes TM thus opening the hold circuit for the first select magnet ISA and releasing SO. The closure of so3 permits the relevant called party's select magnet, e.g. 2SA to energize and hold via 2so2, so2 (back), tm1 (operated). Relay 1BO reoperates to permit the link selector to energize the bridge magnet on the called side of the already selected link. Ringing is supplied and the control logic releases TM and hence 1BO and 2SA. In the event of an external call, the operator actuates key KO thus bringing up TF. An energizing circuit for the corresponding select magnet 1SB in switch B is thereby made and a relay 2BO follows to release select magnet 1SA and to enable an exchange line selector. The latter energizes the bridge magnet corresponding to a free line thus completing the connection. Relays SO, TF and the select magnet in switch B release. The switches preferably incorporate level switching relays so as to provide for 36 extensions on a 12 x 10 switch.
Patent GB-959116-A (GB)
Title: Supporting system for the working parts in sorting apparatus and other similarly moving devices
IPC: B07B1/42
Filed: 1961-12-05
Abstract: 959,116. Sifting and screening. ZAVODY V. I. LENINA PLZEN NARODNI PODNIK. Dec. 5, 1961 [Dec. 5, 1960], No. 43463/61. Heading B2H. As shown in Figs. 2 and 3 the front legs 4 of an oscillating screen box 1 of rectangular form are mounted on a ball and socket bearing 6 while the rear legs 3 are pivoted to a base 2 and the box 1 by bearings 5.
Patent GB-1357871-A (GB)
Title: Gable top container
IPC: B65D33/36
Filed: 1971-09-21
Abstract: 1357871 Gable-topped container PHILLIPS PETROLEUM CO 21 Sept 1971 43993/71 Heading B8P The paperboard blank shown in Fig.2 is folded up to form a gable-topped tubular container  (Fig. 1) having a line of weakness 60 which is rupturable to allow the formation of a reclosable spout. The line of weakness 60 is provided in ridge panels 51, 51a provided with an area 52 free of adhesive so that upon formation of the container closure the abutting faces of the ridge panels 51, 51a do not adhere together. To increase the snap-open effect of the spout score lines 71, 74 are provided in roof panels 28, 31. The area 52 may be provided with a non-stick coating of fluoro-carbon or nitro-cellulose. The score line 27 may be omitted (see Fig. 6) from panel 22. A polythene coating may be employed for heat-sealing the ridge panels 29, 33, 34, 42, 43, 51, 51a, together. A bottom closure (20, Fig. 1) is permanently sealed to the lower end of the container.
Patent GB-887535-A (GB)
Title: High acoustic-energy transmission-loss panel and the like
IPC: G10K11/16
Filed: 1959-12-30
Abstract: 887,535. Modifying acoustic properties of rooms. BOLT, BERANEK & NEWMAN Inc. Dec.30, 1959 [March 6, 1959], No. 44238/59. Class 13. [Also in Group XL (b)] In a sound-absorbing panel, a fairly level absorption frequency characteristic, due to increased absorption at low frequencies, is obtained by loading the non- porous, resilient, panel with masses, so distributed, that their mean separation is less than the wavelengths corresponding to the frequencies which it is desired to absorb. The panel 1 (Fig. 1), may be made of plastic or metal foil and the masses 3 may be lead weights whose separation is small compared with the relevant wavelengths. The masses act as mass-type impedance _elements effectively connected in parallel with the stiffness (compliance)-type elements of the intervening and supporting panel elements 1<SP>1</SP>, this giving rise to a resonance frequency (maximum absorption) when the net motion of the two elements is effectively zero. The masses may be of unequal weight and distribution (Fig. 2, not shown), they may project on both sides of the panel (Fig. 3, not shown), they may be integral with it (Fig. 6, not shown), or they may be in the form of glass beads on a curtain type of panel (Fig. 4, not shown). The panel may be double-walled, with a honeycomb structure between the walls, masses being placed in some of the compartments (Fig. 7, not shown); it may also have portions of itself of higher density than the rest, these portions acting as the masses.
Patent GB-1125617-A (GB)
Title: Jet nozzle for a jet propulsion plant
Inventor: COLVILLE FRANCIS JEFFREY
IPC: B64C29/00
Filed: 1965-10-19
Abstract: 1,125,617. Deflecting propulsion jets. ROLLSROYCE Ltd. 24 Aug., 1966 [19 Oct., 1965], No. 44323/65. Heading B7G. [Also in Division F1] A jet pipe exhaust nozzle assembly 22 (e.g. for a vertical lift engine 14 comprises a ring of nozzle members 23, 23<SP>1</SP> of which at least one diametrically opposite pair 23 direct their exhaust streams so that they converge. The " pitch circle " for the ring of nozzles 23, 23<SP>1</SP> is elliptical, the converging pairs of jet streams being nearer the minor diameter. When the nozzle assembly 22 is rotatable about the axis of the engine 14, and has a curved duct 19 to deflect the jet stream, the elliptical flattening of the exhaust gas jet stream avoids it striking the nozzle of a neighbouring engine, Fig. 2. The flattening of the jet stream also assists in mixing the jet efflux with the ambient air when there are two or more neighbouring engines 14. The engines 14 may be fitted in a pod 12 on the wings (11), Fig. 1 (not shown), of an aircraft (10).
Patent GB-946426-A (GB)
Title: Improvements in or relating to apparatus for tracking light radiating objects
IPC: G01S3/786
Filed: 1961-12-12
Abstract: 946,426. Automatic position control. KOLLSMAN INSTRUMENT CORPORATION. Dec. 12,1961 [Dec. 20, 1960], No. 44371/61. Heading G3R. [Also in Division H4] In an autotracking telescope, plate 54 provided with an aperture, vibrates across the image of a star to interrupt the light therefrom falling on a photo-cell 29 and produce an output signal therefrom having components f o  and 2f o , where f o  is the frequency of the plate vibrations, having relative amplitudes and phases shown in Figs. 7 and 8 and dependent on the position of the image with respect to the centre of vibration of the plate. The 2f o  and f o  components are separated out in amplifiers 72 and 73 respectively and the f o  component fed to one coil 76 of a servomotor 71 having a record coil 70 fed with a reference f o  signal. The servomotor 71 turns the telescope to reduce the f o  component to zero and thus to align the telescope on the stars. The 2f o  component may also be used for servo purposes. Two such systems are needed when tracking in altitude and azimuth is required.
Patent GB-1483443-A (GB)
Title: Screen printing or coating apparatus
IPC: B41F15/40
Filed: 1975-10-29
Abstract: 1483443 Screen printing J A BLACK 29 Oct 1975 [29 Oct 1974] 44682/75 Heading B6C In a screen printer with squeegee 32, the viscosity of the ink is sensed and solvent automatically added to maintain the required viscosity. When the squeegee 32 is lowered into position a lever 52 is depressed by a roller 56 and thence a flow blade 40 is rotated clockwise to open ink reservoir 90. The relative movement of stencil 24 and squeegee 32 causes ink to push against blade 40 and, if the viscosity gets too high, a lever 50 is pushed, against the adjustable bias of a spring 114, to actuate a switch 120 thereby causing a motor to pump solvent from a perforated dispensing tube 158 into the ink reservoir 90.
Patent GB-1278130-A (GB)
Title: Method of compacting potassium salts produced by flotation, with the aid of roll presses
Inventor: RIESCHEL HARTMUT
IPC: C01D3/22
Filed: 1969-09-10
Abstract: 1278130 Compacting potassium salts H W KOPPERN and H SCHAFER [trading as MASCHINENFABRIK KOPPERN & CO KG] 10 Sept 1969 [11 Sept 1968] 44767/69 Heading C1A Compacted potassium salts are produced from potassium salt flotation concentrate by first heating the concentrate to a temperature sufficient to evaporate the flotation agents, and then compacting the heated salt in a smooth roll press. When amines are the flotation agent, the salt concentrate should be heated to a temperature of between 180‹ and 300‹ C., the concentrate should preferably be screened to remove any particles larger than 0À5 cm. It is preferred to operate the roll press at a temperature of 100-120‹ C., and at a force of 4-6 tons per cm. roll length. The heating of the salt concentrate may be carried out in two stages, the first stage by passing hot gases countercurrent to the salt, to heat the salt to 100‹ C., the second stage by passing hot gases co-current with the salt, to heat to 180-300‹ C. The exhaust gases from the second stage are passed to the first stage to secure maximum utilization of the heat.
Patent GB-1206763-A (GB)
Title: Machine for securing thread about a bag neck
Inventor: CAMMILLI RENATO
IPC: B65B51/08
Filed: 1967-10-03
Abstract: 1,206,763. Securing bags. R. CAMMILLI, and R. GIANNELLI. 3 Oct., 1967 [3 Oct., 1966], No. 45074/67. Heading B8C. In securing the necks of bags, thread 3 is drawn by rollers 23, 31 (roller 23 being driven) from a reel in receptacle 1a and is fed via guides and tensioning means past a severing device 36, 37 to a pair of jaws 40a, each with an aperture therein and positioned adjacent a rotary thread twisting device 42 and relative movable thereto. A folded bag neck is inserted into slot 25 to displace an arm 26 (Fig. 2, not shown) and through a link mechanism operates the starting switch of electric motor (18). This operates drive mechanism to rotate the feed rolls 23, 31 to feed a predetermined length of thread forward, then operate severing means 36, 37 to cut off the length 3a, then move the jaws 40a forward and into contact with horns 41 so as to wrap the thread around the bag neck and also to bring it into engagement with the twisting member 42 which is then rotated to twist the ends of the wire together.
Patent GB-1088837-A (GB)
Title: Improvements in or relating to microscopes
Inventor: PLUTA MAKSYMILIAN
IPC: G02B21/14
Filed: 1964-11-05
Abstract: 1,088,837. Microscopes. POLSKIE ZAKLADY OPTYCZNE. Nov.5, 1964 [Nov. 9, 1963], No.45201/64. Heading G2J. A phase contrast microscope comprises an objective 0b having two concentric phase rings Ph 1 , Ph 2 , the inner one of which is positive and the outer one negative, and a condenser diaphragm E having two concentric, transparent rings S 1 , S 2 , positioned so that they are conjugated with the phase rings Ph 1 , Ph 2  respectively, and a system of polarizers which permit the intensity of light passing through the rings S 1 , S 2  to be changed continuously. A circular polarizer P 1  covers the ring S 1 , and an annular polarizer P 2  covers the ring S 2 , the two planes of polarization being perpendicular to each other. A third polarizer P 3  is rotatable to provide a continuous change in light intensity. By this means light falling on either of the phase rings may be cut-off to provide either a positive or a negative phase contrast.
Patent GB-1147407-A (GB)
Title: An apparatus for deburring or trimming endless rubber or rubber-like plastics material extrusions
IPC: B29C37/02
Filed: 1967-10-05
Abstract: 1,147,407. Cutting apparatus. CONTINENTAL GUMMI-WERKE A.G. 5 Oct., 1967 [7 Nov., 1966], No. 45438/67. Heading B4B. An apparatus for bevelling the flanks of driving belts 18 of rubber or plastics material comprises fixed and movable pulleys 7, 16 around which a belt 18 passes and rotary disc cutters 23 advanceable towards the belt from both sides thereof, the pulleys being arranged on a carrier 4 rotatable about its longitudinal axis and drivable in dependence upon -the angular position of the carrier relative to the cutters which are displaceable in the longitudinal direction of the carrier. The pulleys are driven from a motor-driven shaft 9 and bevel gears 8 through switching clutches 11 controlled by a cam 13 on the end face of a fixed axle 12 supporting the carrier 4. The pulley 16 is movable towards and away from the pulley 7 by means of a pressure cylinder 17 controlled by a valve 9, or electromagnetic means, the control impulses being scanned by a cam 20 connected to a circular guide 2. When the pulley 16 is moved away from the pulley 7 to tension the belt 18, guide rollers 21 are simultaneously pressed against the flanks of the belt by means of a pressure cylinder 22. The cutters 23 with their driving motors 24 form a unit which is pivotally mounted relative to a slide 25 which is longitudinally adjustable by means of a pressure cylinder 28. The cutters are adjustable longitudinally and laterally by means of hand cranks 26, 27. Pairs of pulleys 7, 16 may be angularly arranged on the carrier 4.